major.java

自己编的学籍管理系统

package myprojects.studymanager;
import java.io.*;
import java.util.*;
public class Major implements Serializable
{
	private String M_name;
	private String M_information="暂无";
	private int M_contain=30,M_rest=30;
	private LinkedList student;
	private LinkedList teacher;
	
	Major(){}
	Major(String majorname)
	{
		student=new LinkedList();
		teacher=new LinkedList();
		M_name=majorname;
	}
	Major(String majorname,String information)
	{
		student=new LinkedList();
		teacher=new LinkedList();
		M_name=majorname;
		M_information=information;
	}
	public LinkedList getM_teacher()
	{
		return teacher;
	}
	public LinkedList getM_student()
	{
		return student;
	}
	public void setGrastudentMajor(String s)
	{
		student.add(s);
	}
	public void addM_teacher(String tID)
	{
		teacher.add(tID);
	}
	public void removeM_teacher(Teacher t)
	{
		teacher.remove(t);
	}
	public void addM_contain(int add)			//给管理员的方法
	{
		M_contain+=add;
		M_rest+=add;
	} 
	public int getM_contain()
	{
		return M_contain;
	}
	public void setM_information(String information)//给管理员的方法
	{
		M_information=information;
	}
	public String getM_information()
	{
		return M_information;
	}
	public String getM_name()
	{
		return M_name;
	}
	protected void M_chosen(String sID)			
	{
		student.add(sID);
		M_rest--;
	}
	protected int get_Rest()
	{
		return M_rest;
	}
	public String toString()    //need to be public
	{
		return M_name;
	}
}